In the USSenate, the Sergeant-at-Arms was created in 1798, evolving out of the position of doorkeeper. It is his (or her) role to perform such duties as escort officials such as the President at official functions, arranging for funerals of senators who die in office, and orienting new members. The Sergeant-at-Arms is the chief law enforcement official in the Capitol and related office buildings, and authorized to detain individuals. Telecommunications, printing and graphics, and other administrative functions are also run by the office of the Sergeant-at-Arms.

This role is duplicated in other parliamentary bodies (state houses, Canadian provincial bodies, clubs and organizations), for similar security and logistical purposes.